Grid Cartographer - On Steam Greenlight

Grid Cartographer is a tool for making RPG maps on unlimited sheets of graph paper. It supports square and hexagonal grid shapes, a wide variety of built-in icons and terrain types plus the ability to import your own custom tiles.

Included are tools to export maps to PNG, scripted data export for game development and even a simple 3D engine to preview from a first person perspective. A dedicated tile map mode has recently been added to make this a comprehensive tool for any grid based map creation.

Grid Cartographer has been in development since 2013 and is currently at version 4. Improvements are constantly being made to improve features, fix bugs and implement user suggestions.

Good stuff. I messed around a bit with an older version of GC and enjoyed it. Pretty simple to use and worked well when keeping it in another open window. Now that I have a second monitor perhaps using it on that while playing the game on the other monitor would be even better.